\mode<presentation>

\usetheme{Warsaw}
\usefonttheme{professionalfonts}
%\useinnertheme{beamerinnerthemeumbcboxes}

% include packages
\usepackage{subfigure}
\usepackage{multicol}
\usepackage{amsmath}
\usepackage{epsfig}
\usepackage{graphicx}
\usepackage[all,knot]{xy}
\xyoption{arc}
\usepackage{url}
\usepackage{multimedia}
\usepackage{hyperref}
\usepackage{setspace}
\usepackage{verbatim}
\usepackage{mdwlist}